/* roulang page: index */
:root {
      --color-primary: #1E50D8;
      --color-primary-hover: #1640B0;
      --color-primary-light: #EBF1FD;
      --color-accent: #00B96B;
      --color-accent-hover: #009958;
      --color-warning: #FF7A00;
      --bg-base: #FFFFFF;
      --bg-surface: #F8FAFC;
      --bg-deep: #0B132B;
      --bg-deep-alt: #16203D;
      --text-primary: #0F172A;
      --text-secondary: #475569;
      --text-muted: #94A3B8;
      --text-inverse: #FFFFFF;
      --border-light: #E2E8F0;
      --border-dark: #1E293B;
      --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
      --shadow-card: 0 10px 25px -5px rgba(30,80,216,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 30px -10px rgba(30,80,216,0.16);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-pill: 999px;
      --container-max: 1240px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-primary);
      background-color: var(--bg-base);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    ul, ol {
      list-style: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: 88px 0;
      position: relative;
    }

    .section-surface {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .section-dark {
      background-color: var(--bg-deep);
      color: var(--text-inverse);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 56px auto;
    }

    .section-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--color-primary);
      background-color: var(--color-primary-light);
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }

    .section-dark .section-badge {
      background-color: rgba(30, 80, 216, 0.3);
      color: #79A3FF;
      border: 1px solid rgba(121, 163, 255, 0.2);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-primary);
    }

    .section-dark .section-title {
      color: var(--text-inverse);
    }

    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      min-height: 48px;
      line-height: 1.2;
    }

    .btn-primary {
      background-color: var(--color-primary);
      color: var(--text-inverse);
      box-shadow: 0 4px 12px rgba(30, 80, 216, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--color-primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 80, 216, 0.35);
    }

    .btn-accent {
      background-color: var(--color-accent);
      color: var(--text-inverse);
      box-shadow: 0 4px 12px rgba(0, 185, 107, 0.25);
    }

    .btn-accent:hover {
      background-color: var(--color-accent-hover);
      transform: translateY(-2px);
    }

    .btn-outline {
      background-color: transparent;
      border-color: var(--border-light);
      color: var(--text-primary);
    }

    .btn-outline:hover {
      background-color: var(--bg-surface);
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .btn-white {
      background-color: #FFFFFF;
      color: var(--color-primary);
    }

    .btn-white:hover {
      background-color: #F1F5F9;
    }

    /* 双行导航条 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow-sm);
      border-bottom: 1px solid var(--border-light);
    }

    .top-bar {
      background-color: #0F172A;
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--color-accent);
      border-radius: 50%;
      box-shadow: 0 0 0 2px rgba(0, 185, 107, 0.2);
    }

    .nav-main {
      padding: 16px 0;
    }

    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--color-primary), #3B82F6);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 1.125rem;
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-primary);
    }

    .logo-tag {
      font-size: 0.75rem;
      background-color: var(--color-primary-light);
      color: var(--color-primary);
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-links a {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-secondary);
      position: relative;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--color-primary);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-primary);
    }

    /* Hero 板块：自测选型短问卷视觉 */
    .hero-section {
      padding: 64px 0 88px 0;
      background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 20px;
    }

    .hero-content h1 span {
      color: var(--color-primary);
    }

    .hero-intro {
      font-size: 1.125rem;
      line-height: 1.8;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
      margin-bottom: 36px;
    }

    .hero-stats-row {
      display: flex;
      gap: 32px;
      padding-top: 24px;
      border-top: 1px solid var(--border-light);
    }

    .stat-mini-item strong {
      display: block;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-primary);
    }

    .stat-mini-item span {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    /* 问卷选型交互卡片 */
    .quiz-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      position: relative;
    }

    .quiz-card-header {
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-light);
    }

    .quiz-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .quiz-card-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .quiz-group {
      margin-bottom: 20px;
    }

    .quiz-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-secondary);
      margin-bottom: 10px;
      display: block;
    }

    .quiz-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .quiz-chip-btn {
      padding: 8px 14px;
      font-size: 0.8125rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      background: var(--bg-surface);
      color: var(--text-secondary);
      cursor: pointer;
      transition: var(--transition);
    }

    .quiz-chip-btn:hover, .quiz-chip-btn.selected {
      background-color: var(--color-primary-light);
      border-color: var(--color-primary);
      color: var(--color-primary);
      font-weight: 600;
    }

    .quiz-result-preview {
      background-color: #F1F5F9;
      border-radius: 8px;
      padding: 16px;
      margin-bottom: 20px;
      border-left: 4px solid var(--color-primary);
    }

    .quiz-result-label {
      font-size: 0.75rem;
      text-transform: uppercase;
      color: var(--text-muted);
      font-weight: 700;
    }

    .quiz-result-name {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-top: 4px;
    }

    /* 板块 2: 功能亮点 (6卡网格) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-light);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 80, 216, 0.3);
    }

    .feature-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background-color: var(--color-primary-light);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 12px;
    }

    .feature-text {
      font-size: 0.9375rem;
      color: var(--text-secondary);
      line-height: 1.6;
      flex-grow: 1;
    }

    .feature-meta {
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: var(--color-primary);
      font-weight: 600;
    }

    /* 板块 3: 场景矩阵 (3列深度卡片) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .matrix-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .matrix-card:hover {
      box-shadow: var(--shadow-card);
      border-color: var(--color-primary);
    }

    .matrix-card.featured {
      border: 2px solid var(--color-primary);
      position: relative;
    }

    .matrix-badge-top {
      position: absolute;
      top: 12px;
      right: 12px;
      background: var(--color-primary);
      color: #fff;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      font-weight: 600;
    }

    .matrix-card-img {
      height: 190px;
      overflow: hidden;
      position: relative;
    }

    .matrix-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .matrix-card:hover .matrix-card-img img {
      transform: scale(1.05);
    }

    .matrix-card-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .matrix-category-tag {
      font-size: 0.8125rem;
      color: var(--color-primary);
      font-weight: 600;
      margin-bottom: 8px;
    }

    .matrix-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .matrix-summary {
      font-size: 0.9375rem;
      color: var(--text-secondary);
      margin-bottom: 20px;
      line-height: 1.6;
    }

    .matrix-list {
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .matrix-list li {
      position: relative;
      padding-left: 20px;
      font-size: 0.875rem;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }

    .matrix-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--color-accent);
      font-weight: bold;
    }

    /* 板块 4: 流程步骤 (横向推进卡) */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-card {
      background: #FFFFFF;
      padding: 28px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      position: relative;
    }

    .step-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--color-primary-light);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-title {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-primary);
    }

    .step-desc {
      font-size: 0.875rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 板块 5: 截图舞台 (多端系统展示) */
    .stage-container {
      background: #0B132B;
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .stage-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: center;
    }

    .stage-content h3 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .stage-content p {
      font-size: 1rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .stage-tabs {
      display: flex;
      gap: 12px;
      margin-bottom: 28px;
    }

    .stage-tab-btn {
      padding: 8px 18px;
      font-size: 0.875rem;
      background: rgba(255, 255, 255, 0.08);
      color: #CBD5E1;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 255, 255, 0.15);
      cursor: pointer;
    }

    .stage-tab-btn.active {
      background: var(--color-primary);
      color: #fff;
      border-color: var(--color-primary);
    }

    .stage-mockup {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .stage-mockup img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块 6: 客户证言 (社会认同) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testimonial-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-light);
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .testimonial-stars {
      color: #F59E0B;
      font-size: 1.125rem;
      margin-bottom: 14px;
    }

    .testimonial-quote {
      font-size: 0.9375rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--color-primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-primary);
    }

    .author-info strong {
      display: block;
      font-size: 0.9375rem;
      color: var(--text-primary);
    }

    .author-info span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 板块 7: 运营看板核心指标条 */
    .metrics-banner {
      background: linear-gradient(135deg, #1E50D8 0%, #0F3BA8 100%);
      color: #FFFFFF;
      padding: 48px 0;
      border-radius: var(--radius-lg);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-value {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.9375rem;
      opacity: 0.9;
    }

    .metric-sub {
      font-size: 0.75rem;
      opacity: 0.7;
      margin-top: 4px;
    }

    /* 板块 8: 效率对比看板 (传统 vs CRM) */
    .compare-table-box {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .compare-header-row {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      padding: 20px 32px;
      background: #F8FAFC;
      border-bottom: 1px solid var(--border-light);
      font-weight: 700;
      font-size: 1rem;
    }

    .compare-item-row {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      padding: 20px 32px;
      border-bottom: 1px solid var(--border-light);
      align-items: center;
      font-size: 0.9375rem;
    }

    .compare-item-row:last-child {
      border-bottom: none;
    }

    .compare-dimension {
      font-weight: 600;
      color: var(--text-primary);
    }

    .compare-bad {
      color: #EF4444;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .compare-good{
      color: var(--color-accent);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块 9: 套餐对比 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      align-items: stretch;
    }

    .pricing-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }

    .pricing-card:hover {
      box-shadow: var(--shadow-card);
      transform: translateY(-4px);
    }

    .pricing-card.popular {
      border: 2px solid var(--color-primary);
      box-shadow: var(--shadow-hover);
    }

    .popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--color-warning);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
    }

    .pricing-name {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .pricing-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .pricing-value {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--color-primary);
      margin-bottom: 24px;
    }

    .pricing-features {
      margin-bottom: 32px;
      flex-grow: 1;
    }

    .pricing-features li {
      font-size: 0.875rem;
      color: var(--text-secondary);
      margin-bottom: 12px;
      position: relative;
      padding-left: 20px;
    }

    .pricing-features li::before {
      content: "•";
      position: absolute;
      left: 4px;
      color: var(--color-primary);
      font-weight: bold;
    }

    /* 板块 10: 资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .news-card:hover {
      box-shadow: var(--shadow-card);
      border-color: rgba(30, 80, 216, 0.3);
    }

    .news-img {
      height: 180px;
      overflow: hidden;
    }

    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .news-card:hover .news-img img {
      transform: scale(1.04);
    }

    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 1.125rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 10px;
      color: var(--text-primary);
    }

    .news-summary {
      font-size: 0.875rem;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    /* 板块 11: 平台保障 & 硬件物联 */
    .iot-section-box {
      border: 1px solid var(--border-light);
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px;
    }

    .iot-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .iot-item {
      padding: 24px 16px;
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
    }

    .iot-item strong {
      display: block;
      font-size: 1rem;
      color: var(--text-primary);
      margin-top: 10px;
      margin-bottom: 6px;
    }

    .iot-item p {
      font-size: 0.8125rem;
      color: var(--text-secondary);
      line-height: 1.5;
    }

    /* 板块 12: FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      background: #FFFFFF;
      margin-bottom: 16px;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.0625rem;
      font-weight: 600;
      color: var(--text-primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.5rem;
      color: var(--color-primary);
      line-height: 1;
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-question::after {
      content: "−";
    }

    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.9375rem;
      color: var(--text-secondary);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-light);
      padding-top: 16px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块 13: 转化表单与收口行动区 */
    .cta-wrapper {
      background: linear-gradient(135deg, #0B132B 0%, #16203D 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .cta-info h3 {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-info p {
      font-size: 1rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 28px;
    }

    .cta-perks {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .cta-perk-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9375rem;
      color: #E2E8F0;
    }

    .form-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-primary);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-secondary);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(30, 80, 216, 0.15);
    }

    /* 页脚规范 */
    .site-footer {
      background-color: var(--bg-deep);
      color: #94A3B8;
      padding-top: 72px;
      border-top: 1px solid var(--border-dark);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 56px;
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      font-size: 0.875rem;
      color: #94A3B8;
    }

    .footer-links a:hover {
      color: #FFFFFF;
    }

    .footer-contact-item {
      font-size: 0.875rem;
      margin-bottom: 12px;
      line-height: 1.6;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-dark);
      padding: 24px 0;
      font-size: 0.8125rem;
      text-align: center;
      color: #64748B;
    }

    .footer-bottom a {
      color: #64748B;
    }

    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 移动端与自适应断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .features-grid, .matrix-grid, .testimonial-grid, .pricing-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid, .iot-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stage-grid, .cta-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-light);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .features-grid, .matrix-grid, .testimonial-grid, .pricing-grid, .news-grid, .steps-grid, .iot-grid, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-wrapper {
        padding: 32px 20px;
      }
      .compare-header-row, .compare-item-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
    }